Your romance choice

I agree with everything you said, except I'd romance Josie as a male Qunari.  I got the hint she liked my Qunari the first time around when I was romancing Cassandra.  I've spoken to her as a human female mage and she seemed all business.  But I never completed that playthrough I moved onto DA2.  Once I finish DA2, I'll replay DAI.  That is if I don't get hooked on DA2 like I did with DAO.  Which it seems it's gonna happen either way.

My Warden romanced Morrigan.

Leliana every time..

I romanced all of them (had to get the achievements ), although if I had to pick one Morrigan's was my favorite. Really enjoyed Alistar's and Leliana's, remember nothing about Zevran's.

I've got several Wardens, and have played through every romance except Leliana's (and have a playthrough romancing her in the works, I just have to find the energy to slog through Ostagar again), but my most frequent choice is Zevran- I have something like four or five Wardens who romanced Zev, cause he's just so charming .

On the other hand, my personal canon Warden romanced Alistair, and my favorite Warden to play romanced Morrigan, so I do really love their storylines as well.

I have several Wardens, so i`ve played all the romance options. My favorite and my canon romance is Alistair.

I had my female dwarf noble romancing Alistair for two reasons:

1. Being a more malicious Warden, he's the light to counter her darkness, as "opposites attract" goes. She provides him the pragmatism outlook that Alistair desperately needed, and Alistair's kind heart provided her the emotional support she needed as an exile and a kinslayer.

2. Nobody else seemed that suitable as a romantic interest, not even Leliana.

I like Leliana, and in terms of my roleplay, she's actually a bigger moral compass and emotional support than Alistair is (due to her recognizing that urge for violence, something Leli struggles with herself). But in terms of romantic interest, I just couldn't see it for my particular Warden. She feels more like a "big sister" type, or at least a very compassionate friend.

One main factor that affects this is Leliana's delusional vision of the Maker talking to her, and this created a gap between Leli and my dwarf Warden, the latter being of the stone rather than worshiping the Surface God. At least with Alistair, they shared a bond as fellow Grey Wardens who mourned Duncan's death (Duncan who saved her from exile). It also helps that they both share bitter experiences as fellow would-be heirs to the throne.

That being said, I wouldn't mind romancing Leli in my next playthrough, if given the chance. I only feel that she isn't an appropriate love interest for this particular dwarf Warden, but I feel like with a human Warden of a different personality, it could work. In honesty, Leli is a perfect woman as a romance option due to her compassion and emotional vulnerability. It saddens me that she's in Inquisition without the support of a would-be Grey Warden love interest. It wouldn't make sense for the Warden to abandon her like that - well, at least not my Warden. Then again, I haven't played Inquisition, so I can't say for sure.

Zevran is a playboy, so no, I don't find him an ideal love interest. I'm more a traditionalist when it comes to romantic stories, so my ideal love story would be princess and prince, or hero and damsel, that kind of thing. The wisecracking assassin who sleeps around is a bit too raunchy for my taste when it comes to roleplaying romance, but I might consider the option in a much later playthrough, just for curiosity.

Also, it sucks that you can't romance Oghren. I would hit that before I'd do Zev.

Edit:
Oh yeah, forgot about the bad girl Morrigan. I always had problems romancing bad girls. It makes me think of romancing Jack in ME2. It's just too... bold and wild of an romantic option. Not my style.

Leliana

Hard to say no to a character that has redhair with a french accent and sings. excellent

Because Oghren was innocent... okay, I see your point with a dwarf noble.

Yes, if my Warden is an elf, she would take offense too. But she isn't, alas.

It's not about Oghren or Zevran having playful banter with each other, it's the fact that Zev says such a thing while the Warden is present. Regardless of the gameplay limitations, it's still existent in the game, so I'll take it as it is at face value. And besides, it gives her an excuse not to fall madly in love with the playboy like everyone else (playing Origins) seems to be.